How to Generate Videos with FLUX 3

FLUX 3 is Black Forest Labs' new multimodal frontier model, launched in early access on July 23, 2026. One architecture generates images, video up to 20 seconds, synchronized audio, and action predictions.

For filmmakers, FLUX 3 is one of the first major AI video releases where dialogue, effects, ambience, and picture can come out of the same generation. This guide explains what FLUX 3 can do, how to generate videos with FLUX, what is actually available today, how it compares with Seedance, Kling, Veo, and Grok, and how to use FLUX-style outputs in a Flick filmmaking workflow.

Quick answer: can FLUX generate videos?

Yes. FLUX 3 can generate videos. At launch, Black Forest Labs describes FLUX 3 Video as a text-to-video model capable of generating clips up to 20 seconds, with optional native synchronized audio.

The FLUX 3 launch

Black Forest Labs announced FLUX 3 on July 23, 2026 as a multimodal model family spanning image, video, audio, and action. The launch pitch is simple: instead of training one model for images, another for video, another for audio, and another for action prediction, FLUX 3 uses one architecture across modalities.

BFL CEO Robin Rombach summarized the premise this way: "You can't cheat reality. A model that only learns images can only generate images." That framing matters for filmmakers because the hardest part of AI video is no longer a single pretty frame. It is continuity: picture, motion, sound, character, physics, and edit rhythm all have to agree.

The specs that matter to filmmakers

Treat the benchmark number as a vendor claim until independent testing catches up. The more important practical point is that FLUX 3 combines video and audio in one generation, which has immediate workflow implications for filmmakers.

What people are making with FLUX 3

Early access testers had the model before launch, and the first examples show why filmmakers are paying attention: cinematic framing, strong lighting, coherent motion, and native audio potential in the same system.

The examples are still early, but they point to the right evaluation criteria. Do not judge FLUX 3 only by still-frame beauty. Judge it by whether motion, sound, timing, and scene logic hold together.

How to generate videos with FLUX

1. Start with a shot, not a vague idea

FLUX 3 may support text-to-video, but a good video prompt is still a shot direction. Start with one concrete shot:

• Who or what is in frame?
• Where is the camera?
• What moves?
• What changes over time?
• What should the audio contain?
• What should the model avoid?

Weak prompt:

A futuristic city at night.

Better prompt:

Slow aerial push over a rain-soaked futuristic city at night. Neon signs reflect in puddles below, steam rises from street vents, distant traffic hums, and a low synth drone builds under the shot. Cinematic realism, wet asphalt, volumetric light, no readable text, no logos.

The second prompt gives FLUX both visual and audio direction.

2. Write prompts for picture and sound together

One of the reasons FLUX 3 matters is native synchronized audio, which it generates alongside models like Seedance 2.5. Use that in the prompt.

A strong FLUX prompt should include:

• Camera: push-in, dolly, handheld, locked-off, aerial, tracking, orbit.
• Subject motion: walks, turns, reaches, runs, hesitates, looks up.
• Environmental motion: rain, smoke, wind, dust, crowds, fire, water.
• Sound: footsteps, cloth, engine hum, thunder, dialogue, ambience, silence.
• Timing: "after two seconds," "as the camera reaches them," "at the end."
• Constraints: no text, no extra characters, preserve identity, realistic motion.

Example:

Locked-off medium shot of a tired astronaut sitting alone inside a dim spacecraft cockpit.
At the start, only the soft instrument panel glow lights their face. After three seconds, a red warning light begins pulsing.
The astronaut slowly turns toward the window as distant debris taps against the hull.
Audio: low spacecraft hum, faint alarm pulse, subtle breathing inside the helmet, no music.
Cinematic realism, shallow depth of field, no text, no extra characters.

3. Keep the first test simple

For early FLUX generations, avoid scenes that require too much choreography. Use one subject, one camera idea, and one sound idea.

Good first tests:

• A person walking through rain with synced footsteps.
• A door slamming with matching impact sound.
• A spaceship cockpit alarm with pulsing red light.
• A monster emerging from fog with low growl and ambience.
• A quiet dialogue reaction shot with room tone.
• A car passing camera with engine and tire sound.

Riskier tests:

• Multi-person dialogue with exact lip-sync.
• Complicated fight choreography.
• Legible signs or interface text.
• Multi-location sequences in one prompt.
• Precise brand logos.
• Long emotional beats that require performance continuity.

4. Generate variations and compare by sequence value

Do not only ask, "Which clip looks best?" Ask, "Which clip cuts best?"

When reviewing variations, check:

• Does the first frame match the scene before it?
• Does the final frame create a useful cut point?
• Does the sound help the edit or distract from it?
• Does the action read clearly without explanation?
• Does the clip preserve the subject's identity?
• Does the motion feel physically plausible?

The best FLUX output may not be the flashiest one. It is the one that can sit next to other shots.

5. Use shorter outputs when they are cleaner

FLUX 3 advertises up to 20 seconds, but that does not mean every clip should be 20 seconds. AI video often looks strongest when the shot has a clean, specific purpose.

Use 5–8 seconds for:

• Establishing shots.
• Cutaways.
• Insert shots.
• Reaction shots.
• Texture shots with sound.
• Motion tests.

Use 10–20 seconds when:

• The subject remains stable.
• The action has a beginning, middle, and end.
• The audio performance matters.
• The shot needs time to breathe.
• The clip is intended as a complete micro-scene.

FLUX video prompt template

Use this structure:

[Shot type / camera movement] of [subject] in [setting].
[Subject action over time].
[Environmental motion over time].
Audio: [dialogue, ambience, effects, silence, music direction].
Style: [cinematic style, lens, lighting, texture].
Constraints: [identity, no text, no logos, no extra characters, realistic motion].

Example:

Slow handheld tracking shot behind a detective walking down a narrow motel hallway at midnight.
The detective moves cautiously, one hand near the wall, then stops when a door creaks open at the end of the hall.
Fluorescent lights flicker overhead, dust floats in the air, rain runs down the window at the far end.
Audio: soft footsteps on carpet, low motel electricity hum, distant rain, one sharp door creak, no music.
1970s neo-noir, 35mm film grain, warm green fluorescent cast, realistic motion.
No readable text, no logos, no extra people.

Prompt examples for FLUX 3 video

Dialogue moment

Close-up of an exhausted pilot in a dim cockpit, helmet visor half raised.
The pilot looks down, breathes once, then says quietly: "We are not going back."
Warning lights pulse across their face as the camera slowly pushes in.
Audio: cockpit hum, soft alarm beeps, intimate dry dialogue, no music.
Cinematic sci-fi realism, shallow depth of field, preserve face, no text.

Sound-first horror shot

Locked-off wide shot of an empty farmhouse hallway at night.
At first nothing moves. After four seconds, a floorboard creaks off-screen, then the hanging light swings slightly.
Audio: deep room tone, distant wind, single floorboard creak, faint chain movement, no music.
Natural darkness, practical bulb light, realistic horror atmosphere, no visible monster.

Product-style motion

Slow studio orbit around a matte black cinema camera on a reflective table.
Light sweeps across the lens glass as the camera rotates, revealing subtle dust particles in the air.
Audio: quiet mechanical rotation, soft room tone, no music.
Premium commercial lighting, crisp reflections, minimal background.
No logos, no text, keep object shape consistent.

Epic exterior

Wide cinematic shot of ancient ships cutting through dark water at dawn.
Oars move in rhythm, sails snap in the wind, mist wraps around rocky cliffs.
Audio: waves against wood, distant sailcloth snapping, low wind, subtle drum pulse.
Historical epic realism, warm sunrise, 70mm texture, grounded scale.
No modern objects, no fantasy creatures, no readable text.

Quiet character beat

Medium close-up of a young inventor sitting alone at a cluttered workbench before sunrise.
They tighten one small screw, stop, and smile when the machine begins to hum.
Dust floats in the first blue morning light through the window.
Audio: tiny metal screw turn, soft electric hum, morning birds outside, no music.
Naturalistic indie film style, gentle lens softness, realistic hands.

How to use FLUX with Flick

FLUX 3 access is currently early-access, so the exact native Flick integration should be verified before publishing. But FLUX output is standard video, which means you can already treat FLUX clips as part of a Flick film workflow: bring the clips onto the canvas, organize them beside your references, compare them with other model generations, and cut them into the sequence.

To build a FLUX-ready project in Flick:

1. Open a fresh canvas. Create a new Flick project and choose the aspect ratio for the final distribution: 16:9, 9:16, or 1:1.
2. Build the scene visually. Use text nodes as prompt notes, generate scene stills, collect references, and keep the shot plan on the canvas.
3. Lock recurring characters first. Use Flick's Character Reference workflow to anchor the character in stills before you rely on any video model. This matters because every video model can drift across shots.
4. Generate or import FLUX clips. If FLUX is available in your workspace, use it directly when you need picture and synchronized sound in one pass. If you generated FLUX elsewhere during early access, import the video file into the canvas.
5. Compare model outputs. Use FLUX for sound-aware shots, Seedance for reference-heavy or longer clips, Kling for strong motion, and Veo for polished cinematic realism. The film stays on the canvas while the model changes per shot.
6. Extract useful frames. If a FLUX clip produces a strong final frame, save or extract that frame and use it as a reference for the next shot.
7. Grade and edit together. Put FLUX clips, silent AI video clips, voice clips, music, and edits in the same project so the sequence feels like one film.

How FLUX changes the AI filmmaking workflow

Before synchronized AI video, the usual workflow looked like this:

1. Generate a silent clip.
2. Pick the best take.
3. Add dialogue with TTS or a voice model.
4. Add foley from a sound library.
5. Add ambience.
6. Add music.
7. Try to make everything feel like it happened in the same room.

FLUX 3 collapses some of that work into the generation itself. A door can slam with the sound of the door. A cockpit alarm can pulse with the red light. A character can speak in the same shot where the camera moves.

That does not make post-production irrelevant. It makes the first pass more film-like. You will still edit, mix, grade, and refine, but the raw generation may arrive with timing and sound cues already attached.

FLUX 3 vs current AI video models

Seedance still matters for reference-pack workflows. Kling still matters for motion-heavy shots. Veo still matters for polished realism and native audio in supported versions. Grok still matters for fast image-to-video exploration. FLUX 3's differentiator is a single multimodal generation where picture and sound are designed together.

What FLUX 3 can't prove yet

FLUX 3 is promising, but early access leaves important questions unanswered:

• Can you precisely direct the audio? We need to know how much control prompts give over dialogue, foley, ambience, and music.
• Can you regenerate picture while keeping the same performance? Filmmakers need take-level control.
• Can it match a voice across shots? Native sound matters most if a character can stay vocally consistent.
• How strong are references? Character, wardrobe, and location consistency determine whether it works for real films.
• How expensive is iteration? Pricing will decide whether people use it for experiments or production.
• How open are the promised weights? Developer versions could matter more than the hosted release long-term.

Until those answers are public, treat FLUX 3 as a major new capability, not a solved end-to-end production system.

Best practices for better FLUX videos

• Prompt one shot at a time.
• Include audio direction, not just visual direction.
• Specify camera movement clearly.
• Keep early tests simple.
• Avoid readable text and logos.
• Use shorter clips when stability matters.
• Save strong frames as references.
• Check whether sound helps the edit.
• Compare FLUX clips against other models instead of assuming one model wins every shot.
• Keep your film organized in Flick so you can swap models without losing the project.

Common mistakes

• Ignoring audio in the prompt. FLUX 3's differentiator is synchronized sound, so direct it.
• Asking for a full scene in one generation. One clip should be one shot.
• Overusing the full 20 seconds. Longer clips are only better if the action stays coherent.
• Judging only the image. Listen to timing, sound design, ambience, and performance.
• Assuming vendor benchmarks are final. Independent comparisons will matter.
• Forgetting continuity. A beautiful clip still has to match the character, location, and sequence.
• Waiting for one perfect model. In practice, use the best model per shot and assemble the film in one workflow.

Frequently Asked Questions

Related guides

• Keep characters consistent across AI generations
• Enhance and upscale AI video quality
• Seedance 2.5: what to expect
• Does Grok generate AI videos?